COMMS - Alert Tones

Question 1

Alert Tones

Which alert tone is used as the dispatch tone for all “on air” vehicle dispatches?

Answer 1

alert tone 2 - 7 seconds max. Used for incident alerting.

Question 2

Alert Tones

Which emergency alert tone is used to gain the attention of crews?

Answer 2

alert tone 3 - 5 seconds max - used for a mayday, evacuation or emergency announcement